//
//  StatusToolBar.swift
//  新浪微博
//
//  Created by seteny on 16/7/14.
//  Copyright © 2016年 seteny. All rights reserved.
//

import UIKit


// 微博toolBar
class StatusToolBar: UIView {

    
    // MARK:  -- 懒加载
    // 初始化并添加控件
    
    private lazy var retweetButton: UIButton = self.addChildButton("timeline_icon_retweet", title: "转发")
    private lazy var commentButton: UIButton = self.addChildButton("timeline_icon_comment", title: "评论")
    private lazy var unlikeButton: UIButton = self.addChildButton("timeline_icon_unlike", title: "赞")

    
    
    
    //数据模型
    var statusViewModel: StatusViewModel? {
        didSet {
            retweetButton.setTitle(statusViewModel?.retweetStr, forState: .Normal)
            commentButton.setTitle(statusViewModel?.commentStr, forState: .Normal)
            unlikeButton.setTitle(statusViewModel?.unlikeStr, forState: .Normal)
        }
    }
    
    
    
    override init(frame: CGRect) {
        super.init(frame: frame)
    }

    required init?(coder aDecoder: NSCoder) {
        fatalError("init(coder:) has not been implemented")
    }
    
    
    // 添加控件设置约束
    private func setupUI() {
        
        // 设置按钮相应的约束
        retweetButton.snp_makeConstraints { (make) -> Void in
            make.leading.equalTo(self)
            make.top.equalTo(self)
            make.bottom.equalTo(self)
            make.width.equalTo(commentButton)
        }
        
        commentButton.snp_makeConstraints { (make) -> Void in
            make.leading.equalTo(retweetButton.snp_trailing)
            make.top.equalTo(self)
            make.bottom.equalTo(self)
            make.width.equalTo(unlikeButton)
        }
        
        unlikeButton.snp_makeConstraints { (make) -> Void in
            make.trailing.equalTo(self)
            make.top.equalTo(self)
            make.bottom.equalTo(self)
            make.leading.equalTo(commentButton.snp_trailing)
        }
        
        
        // 添加线
        let firstLine = addchildLine()
        let secondLine = addchildLine()
        // 设置约束
        firstLine.snp_makeConstraints { (make) -> Void in
            make.centerX.equalTo(retweetButton.snp_trailing)
            make.centerY.equalTo(self.snp_centerY)
        }
        
        secondLine.snp_makeConstraints { (make) -> Void in
            make.centerX.equalTo(commentButton.snp_trailing)
            make.centerY.equalTo(self.snp_centerY)
        }
        
        
    }
    
    private func addchildLine() -> UIImageView {
        
        let imageView = UIImageView(image: UIImage(named: "timeline_card_bottom_line"))
        
        //添加控件
        addSubview(imageView)
        
        return imageView
    }
    
    
    // 创建按钮的共用方法
    private func addChildButton(imageName: String, title: String) -> UIButton {
        
        let button = UIButton()
        //设置图片
        button.setImage(UIImage(named: imageName), forState: .Normal)
        // 设置背景图片
        button.setBackgroundImage(UIImage(named: "timeline_card_bottom_background"), forState: .Normal)
        //取消高亮
        button.adjustsImageWhenHighlighted = false
        //设置文字
        button.setTitle(title, forState: .Normal)
        //指定文字大小
        button.titleLabel?.font = UIFont.systemFontOfSize(15)
        // 指定文字颜色
        button.setTitleColor(UIColor.grayColor(), forState: .Normal)
        //添加按钮
        addSubview(button)
        
        return button
    }

}
